Product Features
1. Equipped with high-voltage voltage, low-voltage current, zero position indication, power indication, work indication, and timing indication;
2. Equipped with overcurrent protection, zero start protection, sound and light language alarm reminder
3. Adopting a new type of time relay, with a wider timing range (1S~99H)
4. Adopting a new type of current relay, it is more precise and reliable, ensuring personal and equipment safety.
5. Adopting a combination of hardware and software anti-interference technology, with stable performance and strong anti-interference ability
6. The high-voltage coil of the test transformer is a cylindrical multi-layer tower type, wound with high-quality polyester enameled wire and high voltage insulation material.
7. It has the characteristics of light weight, small size, convenient movement, and superior performance.
8. The test transformer (above 5kVA) is equipped with movable iron wheels.
9. This product is small in size and light in weight (20% -65% lighter than oil immersed test transformers of the same grade)
10. Clean, no oil stains, no maintenance required;
11. Not affected by adverse weather conditions, on-site transportation does not require static testing;
12. The insulation strength is significantly higher than that of oil immersed test transformers, with minimal corona;
13. It can be used for AC withstand voltage testing of electrical primary equipment under specified voltage, to assess the insulation strength of the tested object, and to discover insulation defects of the tested object.
Technical parameter
Operation console
Rated capacity: 1.5-100kVA
Rated output current: 7.5~232.5A
Rated output voltage: 0-430V
Input power supply: three-phase AC 380V ± 10% (single-phase AC 220V ± 10%); 50Hz ± 5 Hz
Input current: 7.5-250A
Timing length: 0-9999S (special mode can be used for long-term work)
Voltage accuracy: ≤ 1.0% ± 1 word (F.S)
Current accuracy: ≤ 1.0% ± 1 word (F.S)
Note: If there are special parameter requirements, design and production can be carried out according to the user's technical parameters.
SF6 inflatable test transformer
Rated capacity: 1.5-100kVA
Low voltage side voltage: 400V
Low voltage side current: 7.5-250A
High voltage side AC output voltage: 0-300kV
High voltage side AC output current: 0-3000mA
Measurement ratio: 1000:1
Impedance voltage: 4-9%
Output voltage waveform: sine wave
Transformation ratio error: <± 1%
Waveform distortion rate: not more than 3%
Permissible continuous full load working time: ≥ 1-2 hours (temperature rise of 50 ºC)
No load loss: 0.2%~0.4.0%
Voltage measurement accuracy: 1.0% FS ± 3 words
Current measurement accuracy: 1.0% FS ± 3 words
SF6 insulation gas content: 99.999% (national standard)
Gas pressure: 0.4Mpa
The parameters of the AC DC dual purpose test transformer are as shown in the table above. The rated DC voltage in the DC parameters is 1.4 times the AC voltage, and the rated DC current is 0.7 times the AC current.
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